Breakdown of waste waters containing aromatic nitro compounds

Details Breakdown of waste waters containing aromatic nitro compounds Breakdown of waste waters containing aromatic nitro compounds

1992-02-28

1993-08-03

Cintins, Ivars

Liquid purification or separation

Processes

Chemical treatment

210909, C02F 172

Patent

active

052326055

ABSTRACT:
A process for breaking down aromatic nitro compounds in waste waters from plants for the production of nitrobenzene by treatment with nitric acid is carried out at from 180.degree. to 350.degree. C. and under a pressure of from 40 to 250 bar.

REFERENCES:
patent: 4347144 (1982-08-01), Bodenbenner et al.
patent: 5011614 (1991-04-01), Gresser et al.
Produktionsintegrierter Umweltschutz in der chemischen Industrie, Dechema, GVC, SATW, pp. 63-64.

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